| Europa League | M. | W | D | L | goals | |||
| at home | 1 | 0 | 1 | 0 | 0 | : | 0 | |
| Away | 1 | 0 | 0 | 1 | 0 | : | 2 | |
| ∑ | 2 | 0 | 1 | 1 | 0 | : | 2 | |
| Europa Conference League | M. | W | D | L | goals | |||
| at home | 1 | 1 | 0 | 0 | 3 | : | 1 | |
| Away | 1 | 1 | 0 | 0 | 3 | : | 0 | |
| ∑ | 2 | 2 | 0 | 0 | 6 | : | 1 | |
| overall | M. | W | D | L | goals | |||
| at home | 2 | 1 | 1 | 0 | 3 | : | 1 | |
| Away | 2 | 1 | 0 | 1 | 3 | : | 2 | |
| Neutral Place | 0 | 0 | 0 | 0 | 0 | : | 0 | |
| ∑ | 4 | 2 | 1 | 1 | 6 | : | 3 | |
| Europa League | |||||
| 1999/2000 | 2. Round | West Ham United | - | AFC Steaua București | 0:0 (0:0) |
| 1999/2000 | 2. Round | AFC Steaua București | - | West Ham United | 2:0 (1:0) |
| Europa Conference League | |||||
| 2022/2023 | Group B | FCSB | - | West Ham United | 0:3 (0:1) |
| 2022/2023 | Group B | West Ham United | - | FCSB | 3:1 (0:1) |
|
For games that were decided on penalties the score after 120 minutes will be included in the ranking |
England 
![West Ham United WFC [Women]](https://s.hs-data.com/bilder/wappen/mini/24793.gif?fallback=png "West Ham United WFC [Women]"){kind=small}
![West Ham United [U18]](https://s.hs-data.com/bilder/wappen/mini/28101.gif?fallback=png "West Ham United [U18]"){kind=small}
![West Ham United [U16]](https://s.hs-data.com/bilder/wappen/mini/22847.gif?fallback=png "West Ham United [U16]"){kind=small}
![West Ham United [Youth]](https://s.hs-data.com/bilder/wappen/mini/19797.gif?fallback=png "West Ham United [Youth]"){kind=small}
![West Ham United [Youth B]](https://s.hs-data.com/bilder/wappen/mini/38677.gif?fallback=png "West Ham United [Youth B]"){kind=small}
